MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 155
MC68HC912D60
Manufacturer Part Number
MC68HC912D60
Description
Microcontrollers
Manufacturer
Motorola
Datasheet
1.MC68HC912D60.pdf
(460 pages)
- Current page: 155 of 460
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MC68HC912D60A — Rev 3.0
MOTOROLA
STOP exit without Limp Home
clock monitor disabled
Executing the STOP instruction
STOP exit in Limp Home mode
STOP exit in Limp Home mode
Pseudo-STOP exit in Limp Home
Pseudo-STOP exit
in Limp Home mode without
Pseudo-STOP exit without Limp
Pseudo-STOP exit without Limp
Pseudo-STOP exit without Limp
mode,
without Limp Home mode,
clock monitor enabled
with Delay
without Delay (Fast Stop
Recovery)
mode with Delay
Delay (Fast Stop Recovery)
Home mode, clock monitor
enabled
Home mode, clock monitor
disabled, with Delay
Home mode, clock monitor
disabled, without Delay
Mode
Mode
Table 11-2. Summary of Pseudo STOP Mode Exit Conditions
Table 11-1. Summary of STOP Mode Exit Conditions
. .
Freescale Semiconductor, Inc.
For More Information On This Product,
NOLHM=1
CME=0
DLY=X
NOLHM=1
CME=1
DLY=X
NOLHM=0
CME=X
DLY=1
NOLHM=0
CME=X
DLY=0
NOLHM=0
CME=X
DLY=1
NOLHM=0
CME=X
DLY=0
NOLHM=1
CME=1
DLY=X
NOLHM=1
CME=0
DLY=1
NOLHM=1
CME=0
DLY=0
Conditions
Conditions
Go to: www.freescale.com
Clock Functions
Oscillator must be stable within 4096 XCLK cycles. XCLK
Use of DLY=0 only recommended with external clock.
When a STOP instruction is executed the MCU resets via
Oscillator must be stable within 4096
f
This mode is only recommended for use with an external
CPU exits stop in limp home mode and oscillator running. If
This mode is not recommended as it is possible that the
When a STOP instruction is executed the MCU resets via
Oscillator starts operation following 4096 XCLK cycles
This mode is only recommended for use with an external
VCOMIN
can be modified by SLOW divider register.
the clock monitor reset vector.
the clock monitor circuit can be misled by EXTALi clock
into reporting a good signal before it has fully stabilised
clock source.
the oscillator fails during pseudo-STOP and then recovers
there is a possibility of code runaway as the clock monitor
circuit can be misled by EXTALi clock into reporting a
good signal before it has fully stabilised
initial VCO clock frequency may be high enough to cause
code runaway.
the clock monitor reset vector.
(actual controlled by SLOW mode divider).
clock source.
cycles or there is a possibility of code runaway as
Limp-Home and Fast STOP Recovery modes
Summary
Summary
Clock Functions
Technical Data
155
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